Transceiver capable of causing series resonance with parasitic capacitance

(19)

(11)

EP 1 432 140 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	08.03.2006 Bulletin 2006/10

(43)	Date of publication A2:
	23.06.2004 Bulletin 2004/26

(21)	Application number: 03025105.2

(22)	Date of filing: 31.10.2003

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International Patent Classification (IPC):

H04B 5/00^(2006.01)

H04B 13/00^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

31.10.2002 JP 2002318741
25.06.2003 JP 2003181540
25.06.2003 JP 2003181555
25.06.2003 JP 2003181562

(71)	Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
	Tokyo 100-8116 (JP)

(72)	Inventors:
	Minotani, Tadashi c/o NTT Musashino-shi Tokyo 180-8585 (JP) Sasaki, Akihiro c/o NTT Musashino-shi Tokyo 180-8585 (JP) Shibata, Nobutaro c/o NTT Musashino-shi Tokyo 180-8585 (JP) Shinagawa, Mitsuru c/o NTT Musashino-shi Tokyo 180-8585 (JP)

(74)	Representative: HOFFMANN EITLE
	Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)

(54)	Transceiver capable of causing series resonance with parasitic capacitance

(57) A transceiver for inducing electric fields according to data to be transmitted in an electric field propagating medium, and carrying out at least data transmission by using induced electric fields, is formed by a transmission unit (13) configured to modulate the data to be transmitted by generating alternating current signals having a prescribed frequency, and transmit modulated signals obtained by modulating the data to be transmitted, and a resonance causing unit (9) configured to cause a series resonance with a parasitic capacitance (43) appearing between a ground (41) for the transmission unit (13) and an Earth ground (51) and a parasitic capacitance (53) appearing between the electric field propagating medium and the Earth ground (51).

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